In the world, Aavo (Aavo 
) is a very rare primarily male, but scarcely girly first name. The first name Aavo is habitual in Estonia, where it is quite a rare boy's name, and the United States, where it is an extremely rare male name.
| VARIANT | COUNTRY |
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| Aavo | Canada, Germany, Estonia, United States, India |
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aavo-valdur mikelsaar Estonian medical scientist and geneticist, EE (b. 1941) |
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aavo lossmann Estonian sport dance coach, EE (b. 1942) |
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aavo mölder Estonian politician, EE (b. 1944) |
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aavo pikkuus Estonian cyclist, EE (b. 1954) |
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aavo põhjala Estonian judoka, EE (b. 1957) |
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| aavo sillandi Estonian association football player (1912-1983), EE (b. 1912) |
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aavo kokk Estonian journalist, EE (b. 1964) |
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| aavo ürgsoo (b. 1905) |
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| aavo kimmel (b. 1925) |
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| aavo otsar Estonian economist (1941-2004), EE (b. 1941) |
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| aavo rätsep (b. 1933) |
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| aavo sirk Estonian physicist, EE (b. 1945) |
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| aavo keerme Estonian municipal politician, EE (b. 1948) |
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| aavo valmis (b. 1938) |
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| aavo aaviksaar EE (b. 1941) |
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Anso, Vähi, Merend, Karmas, Kirsch, Pikkof, Põhjala, Rakfeldt, Rebane, Laiapea, Harju, Talvar, Tomkov, Männik, Kärmas, Puussaar, Heinoja, Bazarian, Kalviste, Reinvald, Tomingas, Taaler, Nugis, Tilga, Teder, Agur, Avka, Kask, Koiv, Kuss, Palo, Rmas, Lang, Tamm, Taal, Egel, Viil, Ärm, Sarap, Ardam, Kaine, Kaert, Koort, Põld, Lonks, Janes, Mihkelson, and Reinfeldt